 The majority of the inhabitants said they were Muslim, with 83.72% of the population reporting they observed this belief, while 16.08% of the population practised Ethiopian Orthodox Christianity.Based on figures published by the Central Statistical Agency in 2005, this woreda has an estimated total population of 112,183, of whom 56,642 are men and 55,541 are women; 7,733 or 6.89% of its population are urban dwellers, which is less than the Zone average of 12.3%.With an estimated area of 2,361.57 square kilometers, Seru has an estimated population density of 47.5 people per square kilometer, which is less than the Zone average of 132.2.